valve adaptors/extenders

Chat for Falco Owners.

Moderators: Aladinsaneuk, MartDude, D-Rider, Moderators

Message
Author
fatboy
World Champion
Posts: 3774
Joined: Thu Nov 03, 2011 7:48 pm
Location: BATH

valve adaptors/extenders

#1 Post by fatboy » Wed Apr 08, 2015 7:19 pm

I tried to check my tyre pressures using a standard garage forecourt type inflator and it was a right game of jiggery fucking pokey,all the boy racers sniggering as I struggled with the stupid thing feeding it though gaps in the discs ect.
So I bought some nicely made 90 degree valve adaptors, they weigh around 20 grams each, will this throw my wheels out of balance when I fit them ?
Cleverly disguised as an adult !

User avatar
flatlander
Eprom Test Pilot (Stig)
Posts: 3097
Joined: Tue Jun 14, 2011 9:06 pm
Location: cheshire

#2 Post by flatlander » Wed Apr 08, 2015 9:12 pm

Only if a sniggering boy racer gets trapped between the spokes as you run over him? :)
For the avoidance of doubt and for the benefit of my wife, not everything I may say here will be absolutely true I may on ocassion embellish a little for effect.
That said when it comes to motorbikes, I like to ride side saddle with a nice frock

User avatar
mangocrazy
Admin
Admin
Posts: 3944
Joined: Thu Jul 17, 2008 3:24 pm
Location: Sheffield, UK

#3 Post by mangocrazy » Wed Apr 08, 2015 9:25 pm

No. Do it. They are a wonderful invention and I wouldn't use anything else on any bike I own. They make pumping your tyres up a piece of piss instead of a refined form of torture.

The other thing that really makes inflating your tyres easy is buying a cheap compressor (Aldi, Lidl, etc.) No more pratting about on Tesco's forecourt.

User avatar
D-Rider
Admin
Admin
Posts: 15560
Joined: Wed Jan 03, 2007 1:09 pm
Location: Coventry

#4 Post by D-Rider » Wed Apr 08, 2015 9:30 pm

I used to use a 90 degree adapter but only fitted it when I was pumping up the tyres. The rest of the time it lived in the tool roll.

Best solution is to fit 90 degree valves when you get the tyres changed. They'll be balanced with the tyre fitting and are a great long-term solution.
“Scientists investigate that which already is. Engineers create that which has never been.”
-- Albert Einstein

User avatar
mangocrazy
Admin
Admin
Posts: 3944
Joined: Thu Jul 17, 2008 3:24 pm
Location: Sheffield, UK

#5 Post by mangocrazy » Wed Apr 08, 2015 10:24 pm

Sorry - I was talking about 90 degree valve stems (i.e. the ones you need to fit when changing tyres). The adaptors are a pretty poor halfway house - liable to get nicked if you leave the bike unattended with them fitted and almost as much faff to fit and use as standard valves. The only real long-term solution (IMHO) are 90 degree valves.

User avatar
Falcopops
GP Racer
GP Racer
Posts: 2530
Joined: Mon Dec 18, 2006 4:00 pm
Location: Back to sweating in the tropics
Main bike: Still loving the Falco

#6 Post by Falcopops » Thu Apr 09, 2015 1:32 am

I'm with D-rider and the Mango man, use the 90 degree items when you need them and remove. Imagine the forces that extra weight is exerting at mental speeds.

Fit a set of angled valves when you next change the tyres. Make sure you get the correct diameter valves as they are not the same as Jap ones. Triumph may be the same as the Ape, but make sure 1st

wayno
SuperBike Racer
SuperBike Racer
Posts: 904
Joined: Thu Apr 15, 2010 1:55 pm
Location: Buckinghamshire

#7 Post by wayno » Thu Apr 09, 2015 6:53 am

I agree too, get the 90° valves fitted next time.

And never leave the adaptor connected to the bike if you use one, it'll rip your valve out at speed after a while.
Pass me a hammer, a spanner and a cuppa

User avatar
Firestarter
Twisted Firestarter
Posts: 1429
Joined: Thu Jan 04, 2007 8:28 am
Location: Northwich, Cheshire

#8 Post by Firestarter » Thu Apr 09, 2015 7:07 am

Same approach as D-R and others, I've got a removable 90-deg adaptor.

Or buy some Oz wheels, haven't needed the adaptor since getting those :smt003
Aprilia SL1000 Falco '04 in Black & Red

User avatar
mangocrazy
Admin
Admin
Posts: 3944
Joined: Thu Jul 17, 2008 3:24 pm
Location: Sheffield, UK

#9 Post by mangocrazy » Thu Apr 09, 2015 8:26 am

Japanese bikes use the 11.3mm valve stem, Aprilia and Ducati (and possibly other European makes) use the 8.3mm valve stem. Readily available on eBay and other high quality (?) establishments...

User avatar
D-Rider
Admin
Admin
Posts: 15560
Joined: Wed Jan 03, 2007 1:09 pm
Location: Coventry

#10 Post by D-Rider » Thu Apr 09, 2015 8:33 am

Firestarter wrote:Same approach as D-R and others, I've got a removable 90-deg adaptor.

Or buy some Oz wheels, haven't needed the adaptor since getting those :smt003
The 90 degree adapters sometimes have a bit of a problem sealing on OZ rims due to the profile of the centre section - particularly the rear wheel. Therefore I have a 90 degree on the front (where you really need it) and a straight on one the rear (where access is easy).

My BST rims both have right angle valves.
“Scientists investigate that which already is. Engineers create that which has never been.”
-- Albert Einstein

User avatar
mangocrazy
Admin
Admin
Posts: 3944
Joined: Thu Jul 17, 2008 3:24 pm
Location: Sheffield, UK

#11 Post by mangocrazy » Thu Apr 09, 2015 8:43 am

D-Rider wrote:The 90 degree adapters sometimes have a bit of a problem sealing on OZ rims due to the profile of the centre section - particularly the rear wheel. Therefore I have a 90 degree on the front (where you really need it) and a straight on one the rear (where access is easy).

My BST rims both have right angle valves.
Yes, I found that, as well. But an additional O-ring of the right size and a dab of silicone sealant soon fixed that. I'm not sure if there isn't a slight central seam on the Oz wheels that needs gently relieving, as well.

User avatar
MartDude
Admin
Admin
Posts: 2857
Joined: Tue May 26, 2009 11:36 am
Location: South Shropshire

#12 Post by MartDude » Thu Apr 09, 2015 5:16 pm

Here's a solution from some Aussie Cali lads. Haven't tried it myself yet.

Image


I asked about the effect on wheel balance. One replied

"Boyd Jeffery Martin, They weigh very little. I have one of these tube front and rear and no effect on handling etc. Just makes the old tire pressure check easier and I'm able to use a service station pump without contorting."

http://www.ebay.co.uk/itm/like/14105304 ... cation=ufi
It flies sideways through time
It's an electric line
To your zodiac sign
I've got a Black and Silver Machine!

User avatar
D-Rider
Admin
Admin
Posts: 15560
Joined: Wed Jan 03, 2007 1:09 pm
Location: Coventry

#13 Post by D-Rider » Thu Apr 09, 2015 6:04 pm

Crikey - Mart's added to a thread without telling us that we should all have shaft drive bikes as you don't need to blow the tyres up on them .... or something like that ....

:smt020
“Scientists investigate that which already is. Engineers create that which has never been.”
-- Albert Einstein

User avatar
Willopotomas
GP Racer
GP Racer
Posts: 2256
Joined: Sat Mar 06, 2010 10:11 pm
Location: Coventry, ENGLAND

#14 Post by Willopotomas » Thu Apr 09, 2015 7:06 pm

Or ask the fitter to fit 45deg or 90deg valve when you have have your tyres done. If they try to charge you more, call um 'robbin gits' as they cost the same to buy as a normal valve. :smt002
Most motorcycle problems are caused by the nut that connects the handle bars to the saddle.

User avatar
D-Rider
Admin
Admin
Posts: 15560
Joined: Wed Jan 03, 2007 1:09 pm
Location: Coventry

#15 Post by D-Rider » Thu Apr 09, 2015 7:23 pm

Willopotomas wrote:Or ask the fitter to fit 45deg or 90deg valve when you have have your tyres done. If they try to charge you more, call um 'robbin gits' as they cost the same to buy as a normal valve. :smt002
Keep up Will, keep up !

:smt015
“Scientists investigate that which already is. Engineers create that which has never been.”
-- Albert Einstein

Post Reply